No. 22.] HYMENOPTERA OF CONNECTICUT. 717 



A. robertsoni Dalla Torre. A. serotina Robertson. 

 Occurs with the preceding species, but not so commonly. 

 Putnam, 12 July, 1905 (H. L. V.). 



A. arabis Robertson. 



This appears in early spring. 



A. nubecula Smith. 



Stafford, 24 August, 1905 (W. E. B.). 



°A, distans Provancher. 

 A. canadensis Dalla Torre. 

 Stafford, 24 August, 1905 (W. E. B.). 



A. g. maculati Robertson. 

 Milldale, 21 May, 1906 (B. H. W.). 

 °A. erigeniae Robertson. 



A. fragilis Smith. A. platyparia Robertson. A, laticeps 

 Provancher. A. provancheri Dalla Torre. 

 Branford, 27 June, 1904 (H. L. V.) 



A. Integra Smith. A. lineata Provancher. 

 Brookfield, 26 May, 1904, on Zisia aurea (W. E. B.). 

 A. solidaginis Robertson. PL x, Fig. 10. 

 New Haven, 16 August, 1904 (B. H. W.) ; Stafford, 24 

 August, 1905 (W. E. B.), on goldenrod. 



°A, accepta Viereck. A, pulchella Robertson. 



A. nasoni Robertson. A. vestita Provancher. A. hart ford- 

 ensis Cockerell. 



New Haven, 4-14 May, 1904 (H. L. V.), 13 June, 1902 

 (E. J. S. M.), 8-22 May, 1905 (B. H. W.) ; Branford, 3 May, 

 1905 (H. W. W.). 



This is one of the pollenizers of fruit blossoms, and visits 

 currant, gooseberry, pear, and apple. 



A. novaeangliae Viereck. 



New Haven, 4 May, 1904 (H. L. V.). 



A. ziziae Robertson. 



Brookfield, 26 May, 1904, on flowers of Zisia aurea (B. H. 

 W.). 



°A. cockerelli Graenicher. 



